Here is the full list of all 79 Westerado: Double Barreled achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
You were the Murderer.
You found all the endings!
You just became the biggest star here, since there isn't anyone left except for a few extras.
Now where is that deputy?
Mrs. Tressabell Johnston
Beat the game as the Sister
Too much PDA, bro.
The banditos are back to causing trouble.
Talk to Oilrig Manager at every drilling location.
Like playing monopoly
Mrs. Tressabell Gunslinger
The Beefheads playing for the other side
Magnificent might be a bit of stretch, but the Seven part is undeniable.
Sheriff's worse than when you met him
You pretty much shot more people than actually exist, congratulations!
Beat the game as the Indian
It speaks louder than words.
Unlock all hats at the Haberdasher.
Lost Miner and Miner's Wife both move on.
They were all in on it!
This again? We know we just gave you a gun, but you might not want to shoot everyone.
Lost Miner reunited with Miner's Wife.
From mayhem to meats, the Beefheads did it all
The sheriff helped you 3 times
Mrs. Tressabell Sheriff
Sheriff's back to kicking Ass
Beat the game as the Brother
Beat the game without getting shot
Your family wouldn't give up their land.
Peace between Indians and Military
Buffalo wearing hats and stripes.
He has such great personalities
Keep Rancher Bob, Bell and Cobb alive during the Mansion Attack.
Keep all buffalo alive during a Buffalo Drive.
Come on now, what did those lizards ever do to you?
Beat the game with less then 20 kills
Beat the game in less than an hour
Your Dad was the Murderer.
Beat the game as the Gunslinger.
Unlock all playable Characters
Your mother loved an Indian, and was hiding them in the walls.
Retake our land!
Unlock all Weapons
Help the Indians get past the Military Blockade.
Free all of the Buffalo enslaved by the Ranchers.
It sh*ts money
That buffalo wasn't even wearing the right hat.
Unfold the secret of the animal statues.
Prevent any packages from being stolen during the Carriage Protection.
Obviously you had to shoot all those people, they were coming right for you!
A side of justice with your revenge?
A place to start over.
Two thousand dollars in the bank. It's a lot of money. Takes me three years to earn it!
You know exactly what's on his person.
Find the Movie Set
Explore all the things
He had it coming to him.
Rancher Franchise Made.
Sister got the river in Santa Anna flowing again.
Explore more
Explore 100% of the map
Trains back in town
Digging beyond the veil.
You just can't keep your hands off the stuff.
Dispatching justice will require style!
Finally got that Miner's Hat.
Where do you think you're going?
Don't go thinking you're Annie Oakley, those three hatshots in a row were just a fluke.
Explore 50% of the map
They read it, you weep.
Can't read my...
Make the graveyard safe to visit.
Convince the Ticket Salesman that you're from the Transcontinental Express.
So you had to shoot a few people, right? No big deal.
Sadly we have no knives, so you won't be running any faster.
Bla, bla, bla. You just keep jabbering on.
Soberly together again.
He shot you? That's not what is supposed to happen.
Onwards, adventure awaits!